we'll talk with wayne lapierre, head of the nra in a moment. but, first, mark kelly, retired astronaut, navy captain and husband of former congresswoman gabrielle giffords who was shot two years ago. he and his wife launched a new group, "americans for responsible solutions." captain, let's start with your wife's dramatic testimony before a senate committee this week. >> you must act. be bold. be courageous, americans are counting on you. >> chris: how is gabby doing? >> she's doing great, chris. you know, she enjoyed being there. in front of the senate. it was a little bit of having her former job back, in a sense. being on capitol hill. >> chris: let's get to this debate. because your wife's shooting raises some of the questions at the core of the gun control controversy. jared loughner had been suspended from college because of concerns that he posed a danger to others and yet he was able to go to a store in tucson, pass the background check and buy the gun he used to shoot your wife. so, the question is, what good does it do to make more pe